Information recording device and information recording method

• US 20050088297A1
• Filed: 09/15/2004
• Published: 04/28/2005
• Est. Priority Date: 10/06/2003
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Miyajima, Yasushi
• Granted Patent: US 7,183,909 B2
• Time in Patent Office: Days
• US Class Current: 340/539.120
• CPC Class Codes: A61B 2560/0242 adapted to measure environmental factors, e.g. temperature, pollution
• CPC Class Codes: A61B 2560/0295 adapted for recording user messages or annotations
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/441 Skin evaluation, e.g. for skin disorder diagnosis
• CPC Class Codes: A61B 5/6887 mounted on external non-worn devices, e.g. non-medical devices
• CPC Class Codes: G16H 10/20 for electronic clinical trials or questionnaires
• CPC Class Codes: G16H 40/63 for local operation

Abstract

An information recording device and a method of recording the information, in which the state around a user may be recorded efficiently includes a change sensor that maps three sorts of bio-information, as measured by a bio-information sensor, namely the number of heart beats, GSR (galvanic skin response), and the skin temperature difference, in a three-dimensional feature space, as observed values, and generates classes on the three-dimensional feature space. The change sensor compares a class to which a newly measured observed value belongs to a class to which belong the values measured in the past in order to detect a change in the user when the classes differ from each other. On detection of the changes by the change sensor, a controller actuates a video camera, a still camera, and a microphone to record the image and the sound around the user.

Claims

1. An information recording device comprising

acquisition means for acquiring information;

measurement means for measuring bio-information of a person and/or environmental information around said person;

change detection means for detecting changes in at least one of said bio-information and said environmental information measured by said measurement means;

recording means; and

recording controlling means for causing said recording means to record the information acquired by said acquisition means, when said change detection means detects changes in at least one of said bio-information and said environmental information;

.

2. The information recording device according to claim 1, wherein

said change detection means forms classes in a feature space having values of said bio-information and/or the environmental information as observed values, and detects changes in at least one of said bio-information and said environmental information when the class to which the bio-information or the environmental information currently measured belongs and the class to which belongs the bio-information or the environmental information as measured in the past differ from each other.

3. The information recording device according to claim 1 wherein

said change detection means compares the values of the bio-information and/or the environmental information measured at different time points to find a difference and detect changes in the bio-information and/or the environmental information when the difference exceeds a preset threshold value.

4. The information recording device according to claim 1 wherein

said change detection means compares the value of the bio-information and/or the environmental information to a threshold value representing a standard value of the bio-information and/or the environmental information and detects changes in the bio-information and/or the environmental information when the bio-information and/or the environmental information exceeds said threshold value.

5. The information recording device according to claim 1 further comprising time-keeping means, wherein

said recording controlling means causes said recording means to record the time when the bio-information and/or the environmental information has changed.

6. The information recording device according to claim 1 further comprising

position measurement means for measuring a position of said person, wherein

said recording controlling means causes said recording means to record the position of said person at a time when the bio-information and/or the environmental information has changed.

7. The information recording device according to claim 1 further comprising private information storage means for storing private information of a user;

storage means for storing identification information of a particular person;

specifying means for specifying a person around the user; and

transmitting means for transmitting the private information of the user to an information communication terminal owned by a person specified to be in a near-by site of the user by said specifying means when said person is a person stored in said storage means.

8. A recording method comprising:

a measurement step of measuring the bio-information of a person and/or environmental information around said person;

a change detection step of detecting changes in at least one of said bio-information and said environmental information; and

a recording step of recording the bio-information and/or the environmental information when said change detection step detects changes in at least one of said bio-information and said environmental information.

9. The information recording method according to claim 8 wherein

said change detection step forms classes in a feature space having values of said bio-information or the environmental information as observed values, and verifies the classes to which the bio-information or the environmental information as measured in said measurement step belong to detect changes in said bio-information and/or the environmental information when the classes to which the bio-information or the environmental information, as measured at different time points, belong differ from each other.

10. The information recording method according to claim 8 wherein

said change detection step compares the value of the bio-information and/or the environmental information to a threshold value representing a standard value of the bio-information and/or the environmental information and detect changes in the bio-information and/or the environmental information when the bio-information and/or the environmental information exceeds said threshold value.

11. The information recording method according to claim 8 further comprising:

a time-keeping step; and

a step of recording a time when the change is detected in said change detection step.

12. The information recording method according to claim 8 further comprising

a position measurement step for measuring a position of a person;

and

a step of recording the position of the person when the change in the bio-information and/or the environmental information is detected in said change detection step.

13. The information recording method according to claim 8 further comprising

a specifying step of specifying a person around a user;

and

a transmitting step of transmitting private information of the user to an information communication terminal owned by a person specified to be in a near-by site of the user in said specifying step.